Snowplow



Nov- 13, 1951 o. H. BORGESON SNOW PLOW Filed May 6, 1946 Patented Nov.13, 1951 UNITED? STATES earar OFFICE:

I sNo'wPLow laf 'H:- Borgeson, Han's'ongfMass'. I Aii iiicafitfi Maj-c,194cjsria 1 661.696

particularly to certainimprovementsin the snow plbwdis'clbsed in myPatent 2,188,805} That plow is particularly adapted for use smallfestates and the like and is operated byattachmerit to the bumper of anautomobile. In snow "plowing opertions it isfrequentlynecessaryto movethe plow rearwardly' or 'variousfpurposes jand one' object or myinvention resides? in the provision of infprovedmeansfo r facilitatingthis operation.

' My inventioncontemplates" the employmentieghle h and weak-a th npw'ies'. osw ne may-to therearand uragon magmatic-when" the plow ispushed forwardly and" to" assume an upright 'positionand liftthe'plowiromthe'groundf when the plow is moved rearwardlyl Plow propel-1lingmeans is attached to theplow at an elevation above' the' brackets"and is adapted 'tolift the plow on the brackets and tip its'forwardendupward about the brackets whenthe plow is pul ed rear the plowtoautomobile bumeers of various' widths" and at suitable elevations or"operating the plo'w, and i an improved cutting blade "attachedto thebottom front edgeof-each mold boardand, exiten'din'g forwardlytherefrom? The production of an improved snow plow having these new andvaluable features comprises a further object of the invention. 7

These and other features of the invention will be best understood andappreciated from the following description of a, preferred embodimentthereof selected for purposes of illustration and shown in theaccompanying drawings in which,

Fig. 1 is a perspective rear view of my improved snow plow attached inoperative position to the forward end of an automobile,

Fig. 2 is a side elevation illustrating lifting of the plow when drawnrearwardly,

Fig. 3 is a rear view of the plow in open position,

Fig. 4 is a sectional view taken on line 4-4 of Fig. 3,

Fig. 5 is a fragmentary enlarged view of a portion of Fig. 4, g

Fig. 6 is a plan section taken on line 6-6 of Fig. 3 and showing theplow in folded position, and I 1 Y s' -claiinse (01.37-44) Fig.f 'Z-is aperspective view of a clamping at;

In the drawing'lll' indicates'two mold boards pivotedtogether' at'their'forward ends formov' boards in open position." 'rhej mw [i propelled?byattachment to the front or rear bumper-of anautomobile. U

A pair of angle irons It} is rigidly fixedfto the" brace "elements", [2atoppositef'sideof th'e longitudinal center lineof the'plow and'rigidlytached thereto and eggtending rearwardly are.

pair of angl'eironsfllf livotedto thegfreefends r the parts 20 at}? andxtenemg' pwar iyandi rearwardly therefroinfl a angleironsfflllandirigidly fixed to theto "n'dof each'iron 243a d? ext n r arfi y efibmfisa piece 2511 The fre end or the piece '26, constructed megi atingtherewith is a companion clamping piece' 3 llf The top edges of thebumpers'vary somewhat the'piece to belong'tu v i I menttpwara-ana"downward for the purpose here flange 23 of the part 24 and providestops at 34 movement. The pivot joint permits lifting of the stops 34however prevent undue lifting of the or depression.

vided for automatically lifting or tilting the plow of the plow and atopposite sides of its longitubottom of the plow and they are hinged toswing gage the bottom edgeof a bumper 28' and coo'perfl for engaging thetop edg of the bumper, ajbolt" the bumper.

vided with anielo ngatedbolt Ijhole 3 If permitting:

The two" as-20am t ess pivoted toget inaift'er "describe 'I end'".corners of 'th and 36. The stops 34 limit upward movement of plowto ride over rough obstructions and depressplow and the stops 36 preventundue dropping of It is frequently necessary to move the plow rearforthis purpose. Pivotedto the brace elements dinal center are two brackets40. These brackets freely on said axes to the rear and drag on the 32being provided for clamping the'piecesf ontof fin "width'andfthe'toppiece 301s pro v v rially' adjusted to fit'the umper;asiinustrate at '22that the plow s permitted a limitedmo t"with""tlieangle the plow and thestops 3B limit its downward ing movement to reach into depressions. The

the plow should it ride over a relatively deep hole wardly and thefollowing described means is pro- I2 on horizontal axes 38 extendingtransversely are of a length to extend downwardly beyond the ground whenthe plow is pushed forwardly and to assume an upright position and liftthe plow from the ground when the plow is moved rear wardly. The freeends of the brackets are curved in a direction forwardly and rearwardlyof the plow to provide plow supporting runners when the plow is in thelifted position, and the extreme ends 42 of the brackets have sharppoints adapted to dig into the ground and cause the brackets to pivotforwardly to upright position when the plow is movedrearwardly. Thebrackets swing forwardly against the brace which serves as a stop at 44to limit their forward movement to the upright position illustrated.

When the plow is drawn rearwardly the brack-' ets 40 move to the uprightposition and the front end of the plow is tilted upwardly about thebrackets as illustrated in Fig. 2. To permit this.

tilting movement and provide runners for the plow, I cut away the rearbottom corners of the moldboards at 46. It will be noted that thepropelling means 2024 are attached to the'plow at an elevation above thepivotaxes 38 of the bracket 40 thereby causing the plow to tiltupwardlyas described. YThe plowing operation is facilitated by the employment ofan angle iron 48 fixed to the front faceiof each mold board along itsbottom edge andhaving a cutting blade extending forward- 1y therefrom.The cutting blade serves to loosen the snow for'movement by the plow aswill be apparent.

-Hav, g thus disclosed my invention what I claim as new and desireto'secure by Letters Patent is:

.,'-1I'.,A snow plow comprising a pair of mold boards united into anapex at their forward ends and" diverging rearwardly therefrom, meansfor holding the'mold boards in said diverging relation, plow liftingmeans'hinged to the plow for pivotal movement on a horizontal axisextending transversely of 'the plow, plow propelling means attached tothe plow, the plow lifting means being of a length to extend downwardlybeyond the bottom of the plow and being hinged to swing freely on saidaxis to the rear and drag on the ground when the plow is pushedforwardly by said propelling means and to assume an upright position andI lift the plow from the ground when theplow is moved rearwardly by saidpropelling means, and stop means preventing pivotal movement of the plowlifting means forwardly beyond said upright position, the plow liftingmeans being hinged to the plow intermediately of its front and rear endsand said propelling means being attached to the plow at an elevationabove the pivot axis of the lifting means, the rear bottom corners ofthe mold boards being cut away and rearward movement of the plow by saidpropelling means being adapted to lift the plow on the lifting means andtip its forward end upwardly about the lifting means and bring said cutaway corner portions into contact with the ground.

2. The snow plow defined in claim 1 in which the plow propelling meanscomprises two spaced brackets rigidly attached to the plow above andextending rearwardly beyond the plow lifting means and cooperatingbrackets pivoted on horizontal axes to the first named brackets andextending rearwardly therefrom for attachment to the bumper of avehicle.

3. A snow plow comprising a pair of mold boards united into an apex attheir forward ends and diverging rearwardiy therefrom, a brace extendingtransversely of the plow between and connected to the.mo ldboardsrearwardly of said apex, two brackets hinged to the brace respectivelyatopposite sides ofthe center line of the plow/ on horizontal axesextending transversely of the plow, the brackets being ofva length toextend downwardly beyond the bottom of the plow and; being hinged toswing freely on said axes to the rear and drag on the ground when theplow-is pushed forwardly by power contact with the brace and to assumean upright position and lift the plow from the ground when the plow ismoved rearwardly by power contact withthe brace, and

two propelling elements'attached'to and extending rearwardly of thebrace above said brackets, and respectively at opposite sides of thecenter line of the plow, rearward movement of the plow bysaid elementsbeing adapted 'to' lift the'plow. on and tip it rearwardly about thebrackets, and the rear bottom corners of the mold boards being cut awayto permit such rearward tipping movementand provide supporting runnersfor the plow in such tipped position.

REFERENCES CITED The following references are of record in the file ofthis patent:

UNITED STATES PATENTS OLAF H. BORGESQN.-

